GB857466A - Improvements in or relating to electrical recorders - Google Patents

Improvements in or relating to electrical recorders

Info

Publication number
GB857466A
GB857466A GB3452757A GB3452757A GB857466A GB 857466 A GB857466 A GB 857466A GB 3452757 A GB3452757 A GB 3452757A GB 3452757 A GB3452757 A GB 3452757A GB 857466 A GB857466 A GB 857466A
Authority
GB
United Kingdom
Prior art keywords
stylus
spring
paper
recording
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3452757A
Inventor
Ian Hunter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB3452757A priority Critical patent/GB857466A/en
Publication of GB857466A publication Critical patent/GB857466A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
    • B41J2/39—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material using multi-stylus heads

Landscapes

  • Recording Measured Values (AREA)

Abstract

857,466. Electric pens for recording instruments. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Aug. 18, 1958 [Nov. 5, 1957], No. 34527/57. Class 146(3). A recorder of the kind in which recording is effected on electro-sensitive paper by passing electric current through a recording stylus in contact with said paper has a recording stylus made of an electrically conductive, hard metallic carbide and spring-biased towards the paper. As shown the stylus comprises a rod 2 of tungsten carbide the lower end of which is rounded at 2a. The rod is resistance welded at x to a beryllium-copper spring 3 which serves as the spring mounting for the stylus. After welding the rounded end 2a of the stylus may be ground to a point 2b for contact with the paper. The. stylus may also be made of titanium carbide or a sintered mixture of tungsten carbide and titanium carbide with hard metal cementing agents such as chromium or cobalt. The rod 2, instead of being resistance-welded to the spring 3, may be fitted in a bushed hole in the spring and fixed there by a synthetic resin adhesive. When the adhesive is set a deposited layer of silver is evaporated on over the junction to provide a permanent electrical connection between the stylus and the spring. An outer protective jacket of surface coating resin may be provided over the silver layer.
GB3452757A 1957-11-05 1957-11-05 Improvements in or relating to electrical recorders Expired GB857466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3452757A GB857466A (en) 1957-11-05 1957-11-05 Improvements in or relating to electrical recorders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3452757A GB857466A (en) 1957-11-05 1957-11-05 Improvements in or relating to electrical recorders

Publications (1)

Publication Number Publication Date
GB857466A true GB857466A (en) 1960-12-29

Family

ID=10366745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3452757A Expired GB857466A (en) 1957-11-05 1957-11-05 Improvements in or relating to electrical recorders

Country Status (1)

Country Link
GB (1) GB857466A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754283A (en) * 1969-03-13 1973-08-21 Alden Res Found Recording drum with helical electrode
US4128842A (en) * 1975-09-17 1978-12-05 U.S. Philips Corporation Electrostatic printing device with monocrystalline stylus
US4170779A (en) * 1977-05-02 1979-10-09 International Business Machines Corporation Print head electrode for metal paper printers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754283A (en) * 1969-03-13 1973-08-21 Alden Res Found Recording drum with helical electrode
US4128842A (en) * 1975-09-17 1978-12-05 U.S. Philips Corporation Electrostatic printing device with monocrystalline stylus
US4170779A (en) * 1977-05-02 1979-10-09 International Business Machines Corporation Print head electrode for metal paper printers

Similar Documents

Publication Publication Date Title
ES455880A1 (en) Plated metallic cathode
ES432972A1 (en) Electrode and conductor therefor
GB1532093A (en) Magnetic transducer heads
EP0338857A3 (en) Electrode
KR0156874B1 (en) Sealing member for sealing magnetic fluid
GB1304252A (en)
US3626483A (en) Spark pen
GB857466A (en) Improvements in or relating to electrical recorders
GB1466004A (en) Resistor devices
US5052453A (en) Structure of pencil sharpener
GB1158481A (en) Spark Gap Electronic Component
CA1113438A (en) Facsimile stylus assembly
US4168505A (en) Stylus construction
GB1088117A (en) Recording on a moving medium
GB1157479A (en) A Magnetostriction Device.
JPS6146516A (en) Pen for input device
GB1317115A (en) Lightning arrester unit
GB1524024A (en) Liquid-level indicators
GB1524798A (en) Electrical resistor
US2627416A (en) Induction heating of recording styli
US2595178A (en) Typewriter page end indicator
JPS6075940U (en) Vacuum cutter
JPH0391359U (en)
ES244737A1 (en) Improvements in electrical registry appliances (Machine-translation by Google Translate, not legally binding)
GB924392A (en) Improvements in or relating to electrical resistors